Berlin 2005 – scientific programme

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HL: Halbleiterphysik

HL 2: Symposium ZnO - Rediscovered

HL 2.1: Talk

Friday, March 4, 2005, 10:45–11:15, TU P270

Excitonic Properties on ZnO — •Claus Klingshirn, Heiko Priller, Joachim Zeller und Heinz Kalt — Universität Karlsruhe, Institut für Angewandte Physik, Wolfgang-Gaede-Str. 1, 76131 Karlsruhe

After some introductory comments on the history of ZnO research, we present data on bulk ZnO epilayers, quantum wells, nano rods and dots covering the properties of free excitons in reflection, luminescence (dynamics) and absorption spectroscopy, high excitation processes and optical gain including biexcitons, scattering processes or the transition to an electron hole plasma. Finally we give a few comments on the presently revisited question of the valence band ordering.